Tests for ions and gases

In this section you will be tested on your ability to
2.37 describe simple tests for the cations
i. Li+, Na+, K+, Ca2+ using flame tests,
ii NH4+ using sodium hydroxide solution and identifying the ammonia evolved,
iii Cu2+, Fe2+ and Fe3+ using sodium hydroxide solution
2.38 describe simple tests for the anions:
i. Cl−, Br− and I−, using dilute nitric acid and silver nitrate solution
ii. SO42−, using dilute hydrochloric acid and barium chloride solution
iii CO32−, using dilute hydrochloric acid and identifying the carbon dioxide evolved
2.39 describe simple tests for the gases hydrogen, oxygen, carbon dioxide, ammonia, chlorine